Manufacture of gold-colored sulphurs and vermilions of antimony



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WWW orrit Penn CH ILLA X, I or PARIS, rnancn.

i/riinunacriinn or Goth-commune Nd Drawing;

Be itllmown that I PAUL CHAiLLAU en} :g' ineer, of Paris, Franoe residing at Paris, 12 Rue Caumartm, have invented an Inn- 3 5 proved Manufacture of V Gold-Colored S111 PhUIS and Vermflions of Antlntiony, oi

which the following is a specificatio n This invention has for its 0133601) an nnprojvei process for the manufacture, by dry- 20 y y a golden coloration (gold-eoiored suh process, of gold-colored: sulfides and ver nilions otantiinony. i v a i The said process CODSiStSlli melting in a closed vessel natural sulfide oi antnnony,

)(havinQ the chem ical formula Sh ft by :i-aising it to a suitable temperature, and then I passing into the mass afeurrent o'l atmos- .pheric air. y p

According tothe temperature at WhlOh the operation is carried out, theprodnetohtained, (having the chemical formula tib ifi tide of antimony) or a crimson (Vermilion of antimony).

i The reactionis as follows:

eoioration Application filed. .Time 23,

ii'triatrns Ann VERMILIQNS on ANTIMONY.

Specification ofiLetters Patent. Patented 1% my 23, 1922b 1920. swarm. 391,207.

:The gold-coloredsulfides and the Vermilions oi antimony are produeedin the state ot powder and are collected in a settling chamber that allows only the gas given OH" in the reaction to escape.

Thesnlfurous acid obtained by the aforesaid reaction may be easily used for several purposes asfi'oranstanee, the prorhiction of In testimony whereof I have signed my.

name to this specification in the presence of two subscribing Witnesses. PAUL CHA'ILLAUX.

Witnesses: i

JULEs FAYoLLET, ANDRE BoRmLLoN.

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